Carbohydrate
In lysozyme catalysis, which of the following does not contribute?

Formation of a covalent intermediate at Ser195
The abnormally high pKa of Glu35
The strained conformation of the D sugar
Formation of a covalent intermediate at Asp52

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Carbohydrate
The function of gluconeogenesis is

a pathway for the utilization of amino acids
recovery of lactate from fermentation and glycerol from fat breakdown
maintenance of blood glucose levels during starvation or a low carbohydrate diet
All of these

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Carbohydrate
The multistep pathways of metabolism are efficient because they

use the same substrate for all of the enzymes in the pathway
spread the enzymes for a pathway into several different organelles
locate all of the enzymes for a pathway in the same place within the cell
use the same enzyme for all of the substrates in the pathway

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